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<?php |
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namespace phootwork\file; |
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use phootwork\lang\ArrayObject; |
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use phootwork\lang\Text; |
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class Path { |
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/** @var ArrayObject */ |
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private $segments; |
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/** @var string */ |
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private $stream; |
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/** @var Text */ |
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private $pathname; |
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/** @var string */ |
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private $dirname; |
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/** @var string */ |
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private $filename; |
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/** @var string */ |
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private $extension; |
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public function __construct($pathname) { |
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$this->init($pathname); |
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} |
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private function init($pathname) { |
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$this->pathname = $pathname instanceof Text ? $pathname : new Text($pathname); |
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if ($this->pathname->match('/^[a-zA-Z]+:\/\//')) { |
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$this->stream = $this->pathname->slice(0, $this->pathname->indexOf('://') + 3)->toString(); |
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$this->pathname = $this->pathname->substring($this->pathname->indexOf('://') + 3); |
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} |
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$this->segments = $this->pathname->split('/'); |
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$this->extension = pathinfo($this->pathname, PATHINFO_EXTENSION); |
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$this->filename = basename($this->pathname); |
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$this->dirname = dirname($this->pathname); |
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} |
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/** |
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* Returns the extension |
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* |
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* @return string the extension |
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*/ |
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public function getExtension() { |
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return $this->extension; |
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} |
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/** |
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* Returns the filename |
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* |
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* @return string the filename |
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*/ |
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public function getFilename() { |
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return $this->filename; |
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} |
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/** |
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* Gets the path without filename |
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* |
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* @return string |
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*/ |
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public function getDirname() { |
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return $this->stream . $this->dirname; |
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} |
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/** |
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* Gets the full pathname |
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* |
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* @return Text |
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*/ |
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public function getPathname() { |
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return new Text ($this->stream . $this->pathname); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isStream() { |
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return (null !== $this->stream); |
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} |
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/** |
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* Changes the extension of this path |
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* |
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* @param string $extension the new extension |
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* @return $this |
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*/ |
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public function setExtension($extension) { |
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$pathinfo = pathinfo($this->pathname); |
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$pathname = new Text($pathinfo['dirname']); |
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if (!empty($pathinfo['dirname'])) { |
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$pathname = $pathname->append('/'); |
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} |
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$this->init($pathname |
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->append($pathinfo['filename']) |
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->append('.') |
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->append($extension)) |
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; |
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return $this; |
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} |
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/** |
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* Returns a path with the same segments as this path but with a |
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* trailing separator added (if not already existent). |
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* |
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* @return $this |
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*/ |
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public function addTrailingSeparator() { |
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if (!$this->hasTrailingSeparator()) { |
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$this->pathname = $this->pathname->append('/'); |
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} |
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return $this; |
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} |
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/** |
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* Returns the path obtained from the concatenation of the given path's |
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* segments/string to the end of this path. |
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* |
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* @param string|Text|Path $path |
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* @return Path |
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*/ |
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public function append($path) { |
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if ($path instanceof Path) { |
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$path = $path->getPathname(); |
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} |
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if (!$this->hasTrailingSeparator()) { |
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$this->addTrailingSeparator(); |
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} |
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return new Path($this->getPathname()->append($path)); |
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} |
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/** |
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* Returns whether this path has a trailing separator. |
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* |
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* @return boolean |
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*/ |
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public function hasTrailingSeparator() { |
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return $this->pathname->endsWith('/'); |
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} |
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/** |
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* Returns whether this path is empty |
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* |
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* @return boolean |
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*/ |
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public function isEmpty() { |
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return $this->pathname->isEmpty(); |
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} |
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/** |
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* Returns whether this path is an absolute path. |
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* |
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* @return boolean |
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*/ |
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public function isAbsolute() { |
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//Stream urls are always absolute |
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if ($this->isStream()) { |
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return true; |
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} |
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if (realpath($this->pathname->toString()) == $this->pathname->toString()) { |
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return true; |
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} |
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if ($this->pathname->length() == 0 || $this->pathname->startsWith('.')) { |
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return false; |
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} |
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// Windows allows absolute paths like this. |
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if ($this->pathname->match('#^[a-zA-Z]:\\\\#')) { |
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return true; |
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} |
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// A path starting with / or \ is absolute; anything else is relative. |
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return $this->pathname->startsWith('/') || $this->pathname->startsWith('\\'); |
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} |
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/** |
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* Checks whether this path is the prefix of another path |
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* |
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* @param Path $anotherPath |
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* @return boolean |
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*/ |
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public function isPrefixOf(Path $anotherPath) { |
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return $anotherPath->getPathname()->startsWith($this->pathname); |
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} |
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/** |
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* Returns the last segment of this path, or null if it does not have any segments. |
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* |
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* @return Text |
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*/ |
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public function lastSegment() { |
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return new Text($this->segments[count($this->segments) - 1]); |
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} |
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/** |
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* Makes the path relative to another given path |
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* |
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* @param Path $base |
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* @return Path the new relative path |
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*/ |
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public function makeRelativeTo(Path $base) { |
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$pathname = clone $this->pathname; |
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return new Path($pathname->replace($base->removeTrailingSeparator()->getPathname(), '')); |
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} |
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/** |
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* Returns a count of the number of segments which match in this |
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* path and the given path, comparing in increasing segment number order. |
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* |
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* @param Path $anotherPath |
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* @return int |
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*/ |
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public function matchingFirstSegments(Path $anotherPath) { |
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$segments = $anotherPath->segments(); |
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$count = 0; |
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foreach ($this->segments as $i => $segment) { |
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if ($segment != $segments[$i]) { |
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break; |
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} |
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$count++; |
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} |
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return $count; |
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} |
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/** |
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* Returns a new path which is the same as this path but with the file extension removed. |
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* |
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* @return Path |
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*/ |
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public function removeExtension() { |
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return new Path($this->pathname->replace('.' . $this->getExtension(), '')); |
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} |
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/** |
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* Returns a copy of this path with the given number of segments removed from the beginning. |
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* |
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* @param int $count |
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* @return Path |
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*/ |
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public function removeFirstSegments($count) { |
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$segments = new ArrayObject(); |
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for ($i = $count; $i < $this->segmentCount(); $i++) { |
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$segments->push($this->segments[$i]); |
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} |
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return new Path($segments->join('/')); |
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} |
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/** |
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* Returns a copy of this path with the given number of segments removed from the end. |
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* |
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* @param int $count |
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* @return Path |
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*/ |
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public function removeLastSegments($count) { |
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$segments = new ArrayObject(); |
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for ($i = 0; $i < $this->segmentCount() - $count; $i++) { |
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$segments->push($this->segments[$i]); |
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} |
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return new Path($segments->join('/')); |
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} |
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/** |
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* Returns a copy of this path with the same segments as this path but with a trailing separator removed. |
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* |
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* @return $this |
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*/ |
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public function removeTrailingSeparator() { |
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if ($this->hasTrailingSeparator()) { |
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$this->pathname = $this->pathname->substring(0, -1); |
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} |
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return $this; |
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} |
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/** |
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* Returns the specified segment of this path, or null if the path does not have such a segment. |
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* |
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* @param int $index |
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* @return string |
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*/ |
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public function segment($index) { |
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if (isset($this->segments[$index])) { |
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return $this->segments[$index]; |
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} |
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return null; |
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} |
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/** |
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* Returns the number of segments in this path. |
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* |
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* @return int |
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*/ |
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public function segmentCount() { |
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return $this->segments->count(); |
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} |
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/** |
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* Returns the segments in this path in order. |
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* |
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* @return ArrayObject<string> |
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*/ |
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public function segments() { |
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return $this->segments; |
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} |
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/** |
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* Returns a FileDescriptor corresponding to this path. |
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* |
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* @return FileDescriptor |
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*/ |
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public function toFileDescriptor() { |
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return new FileDescriptor($this->getPathname()); |
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} |
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/** |
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* Returns a string representation of this path |
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* |
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* @return string A string representation of this path |
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*/ |
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public function toString() { |
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return $this->stream . $this->pathname; |
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} |
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/** |
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* String representation as pathname |
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*/ |
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public function __toString() { |
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return $this->toString(); |
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} |
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/** |
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* Returns a copy of this path truncated after the given number of segments. |
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* |
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* @param int $count |
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* @return Path |
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*/ |
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public function upToSegment($count) { |
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$segments = new ArrayObject(); |
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for ($i = 0; $i < $count; $i++) { |
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$segments->push($this->segments[$i]); |
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} |
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return new Path($segments->join('/')); |
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} |
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361
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/** |
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* Checks whether both paths point to the same location |
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* |
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* @param Path|string $anotherPath |
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* @return boolean true if the do, false if they don't |
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*/ |
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public function equals($anotherPath) { |
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$anotherPath = $anotherPath instanceof Path ? $anotherPath : new Path($anotherPath); |
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if ($this->isStream() ^ $anotherPath->isStream()) { |
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return false; |
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} |
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if ($this->isStream() && $anotherPath->isStream()) { |
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return $this->toString() === $anotherPath->toString(); |
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} |
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return realpath($this->pathname->toString()) == realpath($anotherPath->toString()); |
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} |
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} |
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